149287770 has 24 divisors (see below), whose sum is σ = 388148436. Its totient is φ = 39810048.

The previous prime is 149287763. The next prime is 149287771. The reversal of 149287770 is 77782941.

It is a happy number.

149287770 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 136819809 + 12467961 = 11697^2 + 3531^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (149287771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 829287 + ... + 829466.

Almost surely, 2^149287770 is an apocalyptic number.

149287770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149287770 is an abundant number, since it is smaller than the sum of its proper divisors (238860666).

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

149287770 is a wasteful number, since it uses less digits than its factorization.

149287770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658766 (or 1658763 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 149287770 is about 12218.3374482783. The cubic root of 149287770 is about 530.4869974958.

The spelling of 149287770 in words is "one hundred forty-nine million, two hundred eighty-seven thousand, seven hundred seventy".