149356490 has 8 divisors (see below), whose sum is σ = 268841700. Its totient is φ = 59742592.

The previous prime is 149356483. The next prime is 149356499. The reversal of 149356490 is 94653941.

It can be written as a sum of positive squares in 2 ways, for example, as 148669249 + 687241 = 12193^2 + 829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×149356490² = 44614722210240200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149356499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7467815 + ... + 7467834.

Almost surely, 2^149356490 is an apocalyptic number.

149356490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149356490 is a deficient number, since it is larger than the sum of its proper divisors (119485210).

149356490 is a wasteful number, since it uses less digits than its factorization.

149356490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14935656.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 149356490 is about 12221.1492912901. The cubic root of 149356490 is about 530.5683827609.

The spelling of 149356490 in words is "one hundred forty-nine million, three hundred fifty-six thousand, four hundred ninety".