1253055157 has 16 divisors (see below), whose sum is σ = 1335242880. Its totient is φ = 1173348352.

The previous prime is 1253055137. The next prime is 1253055163. The reversal of 1253055157 is 7515503521.

It is a cyclic number.

It is not a de Polignac number, because 1253055157 - 2¹⁵ = 1253022389 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 (1253055137) 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, 346953 + ... + 350545.

It is an arithmetic number, because the mean of its divisors is an integer number (83452680).

Almost surely, 2^1253055157 is an apocalyptic number.

It is an amenable number.

1253055157 is a deficient number, since it is larger than the sum of its proper divisors (82187723).

1253055157 is a wasteful number, since it uses less digits than its factorization.

1253055157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932.

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 1253055157 is about 35398.5191356927. The cubic root of 1253055157 is about 1078.0942491455.

Adding to 1253055157 its reverse (7515503521), we get a palindrome (8768558678).

The spelling of 1253055157 in words is "one billion, two hundred fifty-three million, fifty-five thousand, one hundred fifty-seven".