137122890 has 16 divisors (see below), whose sum is σ = 329095008. Its totient is φ = 36566096.

The previous prime is 137122871. The next prime is 137122897. The reversal of 137122890 is 98221731.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137122897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2285352 + ... + 2285411.

It is an arithmetic number, because the mean of its divisors is an integer number (20568438).

Almost surely, 2^137122890 is an apocalyptic number.

137122890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137122890 is an abundant number, since it is smaller than the sum of its proper divisors (191972118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137122890 is a wasteful number, since it uses less digits than its factorization.

137122890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570773.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 137122890 is about 11709.9483346426. The cubic root of 137122890 is about 515.6677673250.

The spelling of 137122890 in words is "one hundred thirty-seven million, one hundred twenty-two thousand, eight hundred ninety".