137823780 has 48 divisors (see below), whose sum is σ = 391353984. Its totient is φ = 36234240.

The previous prime is 137823767. The next prime is 137823793. The reversal of 137823780 is 87328731.

It is an interprime number because it is at equal distance from previous prime (137823767) and next prime (137823793).

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, 11917 + ... + 20436.

It is an arithmetic number, because the mean of its divisors is an integer number (8153208).

Almost surely, 2^137823780 is an apocalyptic number.

137823780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137823780 is an abundant number, since it is smaller than the sum of its proper divisors (253530204).

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

137823780 is a wasteful number, since it uses less digits than its factorization.

137823780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32436 (or 32434 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 137823780 is about 11739.8373072202. The cubic root of 137823780 is about 516.5448694287.

The spelling of 137823780 in words is "one hundred thirty-seven million, eight hundred twenty-three thousand, seven hundred eighty".