1025149927 has 2 divisors, whose sum is σ = 1025149928. Its totient is φ = 1025149926.

The previous prime is 1025149897. The next prime is 1025149973. The reversal of 1025149927 is 7299415201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1025149927 - 2²⁷ = 890932199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1025149927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025149327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512574963 + 512574964.

It is an arithmetic number, because the mean of its divisors is an integer number (512574964).

Almost surely, 2^1025149927 is an apocalyptic number.

1025149927 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025149927 is an equidigital number, since it uses as much as digits as its factorization.

1025149927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 1025149927 is about 32017.9625679087. The cubic root of 1025149927 is about 1008.3139949270.

The spelling of 1025149927 in words is "one billion, twenty-five million, one hundred forty-nine thousand, nine hundred twenty-seven".