2157567134 has 4 divisors (see below), whose sum is σ = 3236350704. Its totient is φ = 1078783566.

The previous prime is 2157567107. The next prime is 2157567161. The reversal of 2157567134 is 4317657512.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2157567107) and next prime (2157567161).

It is a junction number, because it is equal to n+sod(n) for n = 2157567091 and 2157567100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539391782 + ... + 539391785.

It is an arithmetic number, because the mean of its divisors is an integer number (809087676).

Almost surely, 2^2157567134 is an apocalyptic number.

2157567134 is a deficient number, since it is larger than the sum of its proper divisors (1078783570).

2157567134 is a wasteful number, since it uses less digits than its factorization.

2157567134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078783569.

The product of its digits is 176400, while the sum is 41.

The square root of 2157567134 is about 46449.6193095272. The cubic root of 2157567134 is about 1292.1753121672.

The spelling of 2157567134 in words is "two billion, one hundred fifty-seven million, five hundred sixty-seven thousand, one hundred thirty-four".