1425703961 has 4 divisors (see below), whose sum is σ = 1555313424. Its totient is φ = 1296094500.

The previous prime is 1425703949. The next prime is 1425703973. The reversal of 1425703961 is 1693075241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1425703949) and next prime (1425703973).

It is a cyclic number.

It is not a de Polignac number, because 1425703961 - 2⁶ = 1425703897 is a prime.

It is a super-2 number, since 2×1425703961² = 4065263568822179042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425703991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64804715 + ... + 64804736.

It is an arithmetic number, because the mean of its divisors is an integer number (388828356).

Almost surely, 2^1425703961 is an apocalyptic number.

1425703961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1425703961 is a deficient number, since it is larger than the sum of its proper divisors (129609463).

1425703961 is a wasteful number, since it uses less digits than its factorization.

1425703961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129609462.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1425703961 is about 37758.4952163086. The cubic root of 1425703961 is about 1125.4938305378.

The spelling of 1425703961 in words is "one billion, four hundred twenty-five million, seven hundred three thousand, nine hundred sixty-one".