2115135754 has 4 divisors (see below), whose sum is σ = 3172703634. Its totient is φ = 1057567876.

The previous prime is 2115135749. The next prime is 2115135761. The reversal of 2115135754 is 4575315112.

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

It can be written as a sum of positive squares in only one way, i.e., 1787344729 + 327791025 = 42277^2 + 18105^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528783937 + ... + 528783940.

Almost surely, 2^2115135754 is an apocalyptic number.

2115135754 is a deficient number, since it is larger than the sum of its proper divisors (1057567880).

2115135754 is a wasteful number, since it uses less digits than its factorization.

2115135754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057567879.

The product of its digits is 21000, while the sum is 34.

The square root of 2115135754 is about 45990.6050623385. The cubic root of 2115135754 is about 1283.6483951850.

The spelling of 2115135754 in words is "two billion, one hundred fifteen million, one hundred thirty-five thousand, seven hundred fifty-four".