1425663031 has 16 divisors (see below), whose sum is σ = 1570847040. Its totient is φ = 1285885440.

The previous prime is 1425663017. The next prime is 1425663047. The reversal of 1425663031 is 1303665241.

It is a cyclic number.

It is not a de Polignac number, because 1425663031 - 2²³ = 1417274423 is a prime.

It is a super-2 number, since 2×1425663031² = 4065030155920213922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425662984 and 1425663002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425663131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97465 + ... + 111133.

It is an arithmetic number, because the mean of its divisors is an integer number (98177940).

Almost surely, 2^1425663031 is an apocalyptic number.

1425663031 is a deficient number, since it is larger than the sum of its proper divisors (145184009).

1425663031 is a wasteful number, since it uses less digits than its factorization.

1425663031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13866.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1425663031 is about 37757.9532151837. The cubic root of 1425663031 is about 1125.4830599747.

The spelling of 1425663031 in words is "one billion, four hundred twenty-five million, six hundred sixty-three thousand, thirty-one".