149495554 has 16 divisors (see below), whose sum is σ = 243888120. Its totient is φ = 68313600.

The previous prime is 149495543. The next prime is 149495597. The reversal of 149495554 is 455594941.

It can be written as a sum of positive squares in 4 ways, for example, as 96569929 + 52925625 = 9827^2 + 7275^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25839 + ... + 31090.

Almost surely, 2^149495554 is an apocalyptic number.

149495554 is a deficient number, since it is larger than the sum of its proper divisors (94392566).

149495554 is a wasteful number, since it uses less digits than its factorization.

149495554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57045.

The product of its digits is 648000, while the sum is 46.

The square root of 149495554 is about 12226.8374488254. The cubic root of 149495554 is about 530.7330002564.

It can be divided in two parts, 14949 and 5554, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 149495554 in words is "one hundred forty-nine million, four hundred ninety-five thousand, five hundred fifty-four".