1425691077 has 8 divisors (see below), whose sum is σ = 2012740416. Its totient is φ = 894551232.

The previous prime is 1425691061. The next prime is 1425691103. The reversal of 1425691077 is 7701965241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1425691077 - 2⁴ = 1425691061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425698077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13977313 + ... + 13977414.

It is an arithmetic number, because the mean of its divisors is an integer number (251592552).

Almost surely, 2^1425691077 is an apocalyptic number.

1425691077 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1425691077 is a deficient number, since it is larger than the sum of its proper divisors (587049339).

1425691077 is a wasteful number, since it uses less digits than its factorization.

1425691077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27954747.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 1425691077 is about 37758.3246053105. The cubic root of 1425691077 is about 1125.4904401878.

The spelling of 1425691077 in words is "one billion, four hundred twenty-five million, six hundred ninety-one thousand, seventy-seven".