135251154994 has 8 divisors (see below), whose sum is σ = 202893056028. Its totient is φ = 67620136320.

The previous prime is 135251154991. The next prime is 135251155027. The reversal of 135251154994 is 499451152531.

It can be written as a sum of positive squares in 2 ways, for example, as 124653481969 + 10597673025 = 353063^2 + 102945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×135251154994² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135251154991) 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, 2689447 + ... + 2739274.

Almost surely, 2^135251154994 is an apocalyptic number.

135251154994 is a deficient number, since it is larger than the sum of its proper divisors (67641901034).

135251154994 is a wasteful number, since it uses less digits than its factorization.

135251154994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441180.

The product of its digits is 972000, while the sum is 49.

The spelling of 135251154994 in words is "one hundred thirty-five billion, two hundred fifty-one million, one hundred fifty-four thousand, nine hundred ninety-four".