149736780 has 72 divisors (see below), whose sum is σ = 466498032. Its totient is φ = 38848896.

The previous prime is 149736779. The next prime is 149736809. The reversal of 149736780 is 87637941.

149736780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×149736780² = 44842206569536800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4582 + ... + 17901.

Almost surely, 2^149736780 is an apocalyptic number.

149736780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149736780 is an abundant number, since it is smaller than the sum of its proper divisors (316761252).

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

149736780 is a wasteful number, since it uses less digits than its factorization.

149736780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22535 (or 22530 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 149736780 is about 12236.6980840421. The cubic root of 149736780 is about 531.0183104116.

The spelling of 149736780 in words is "one hundred forty-nine million, seven hundred thirty-six thousand, seven hundred eighty".