149231430 has 32 divisors (see below), whose sum is σ = 397951200. Its totient is φ = 39794976.

The previous prime is 149231399. The next prime is 149231461. The reversal of 149231430 is 34132941.

It is an interprime number because it is at equal distance from previous prime (149231399) and next prime (149231461).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149231394 and 149231403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276085 + ... + 276624.

It is an arithmetic number, because the mean of its divisors is an integer number (12435975).

Almost surely, 2^149231430 is an apocalyptic number.

149231430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149231430 is an abundant number, since it is smaller than the sum of its proper divisors (248719770).

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

149231430 is a wasteful number, since it uses less digits than its factorization.

149231430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552725 (or 552719 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 149231430 is about 12216.0316797232. The cubic root of 149231430 is about 530.4202552614.

The spelling of 149231430 in words is "one hundred forty-nine million, two hundred thirty-one thousand, four hundred thirty".