2261052157 has 16 divisors (see below), whose sum is σ = 2796045952. Its totient is φ = 1780470720.

The previous prime is 2261052121. The next prime is 2261052179. The reversal of 2261052157 is 7512501622.

It is not a de Polignac number, because 2261052157 - 2⁷ = 2261052029 is a prime.

It is a super-2 number, since 2×2261052157² = 10224713713348705298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261052107) 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, 39678 + ... + 78079.

It is an arithmetic number, because the mean of its divisors is an integer number (174752872).

Almost surely, 2^2261052157 is an apocalyptic number.

It is an amenable number.

2261052157 is a deficient number, since it is larger than the sum of its proper divisors (534993795).

2261052157 is a wasteful number, since it uses less digits than its factorization.

2261052157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117988.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 2261052157 is about 47550.5221527587. The cubic root of 2261052157 is about 1312.5127377388.

Adding to 2261052157 its reverse (7512501622), we get a palindrome (9773553779).

The spelling of 2261052157 in words is "two billion, two hundred sixty-one million, fifty-two thousand, one hundred fifty-seven".