137525163890 has 32 divisors (see below), whose sum is σ = 253879529904. Its totient is φ = 53605596160.

The previous prime is 137525163887. The next prime is 137525163901. The reversal of 137525163890 is 98361525731.

It can be written as a sum of positive squares in 8 ways, for example, as 33665277361 + 103859886529 = 183481^2 + 322273^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155672 + ... + 547068.

Almost surely, 2^137525163890 is an apocalyptic number.

137525163890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137525163890 is a deficient number, since it is larger than the sum of its proper divisors (116354366014).

137525163890 is a wasteful number, since it uses less digits than its factorization.

137525163890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392302.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 137525163890 in words is "one hundred thirty-seven billion, five hundred twenty-five million, one hundred sixty-three thousand, eight hundred ninety".