1012273957 has 4 divisors (see below), whose sum is σ = 1019662956. Its totient is φ = 1004884960.

The previous prime is 1012273937. The next prime is 1012273961. The reversal of 1012273957 is 7593722101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7593722101 = 7 ⋅1084817443.

It can be written as a sum of positive squares in 2 ways, for example, as 328660641 + 683613316 = 18129^2 + 26146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012273957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012273937) 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, 3694294 + ... + 3694567.

It is an arithmetic number, because the mean of its divisors is an integer number (254915739).

Almost surely, 2^1012273957 is an apocalyptic number.

It is an amenable number.

1012273957 is a deficient number, since it is larger than the sum of its proper divisors (7388999).

1012273957 is an equidigital number, since it uses as much as digits as its factorization.

1012273957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7388998.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 1012273957 is about 31816.2530320589. The cubic root of 1012273957 is about 1004.0746933234.

The spelling of 1012273957 in words is "one billion, twelve million, two hundred seventy-three thousand, nine hundred fifty-seven".