149031490 has 16 divisors (see below), whose sum is σ = 279920448. Its totient is φ = 57020656.

The previous prime is 149031481. The next prime is 149031499. The reversal of 149031490 is 94130941.

It is an interprime number because it is at equal distance from previous prime (149031481) and next prime (149031499).

It is not an unprimeable number, because it can be changed into a prime (149031499) 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, 323752 + ... + 324211.

It is an arithmetic number, because the mean of its divisors is an integer number (17495028).

Almost surely, 2^149031490 is an apocalyptic number.

149031490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149031490 is a deficient number, since it is larger than the sum of its proper divisors (130888958).

149031490 is a wasteful number, since it uses less digits than its factorization.

149031490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647993.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 149031490 is about 12207.8454282482. The cubic root of 149031490 is about 530.1832640235.

The spelling of 149031490 in words is "one hundred forty-nine million, thirty-one thousand, four hundred ninety".