149209548436 has 24 divisors (see below), whose sum is σ = 281555515080. Its totient is φ = 68779519872.

The previous prime is 149209548401. The next prime is 149209548461. The reversal of 149209548436 is 634845902941.

It can be written as a sum of positive squares in 4 ways, for example, as 21460492036 + 127749056400 = 146494^2 + 357420^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1758691 + ... + 1841578.

It is an arithmetic number, because the mean of its divisors is an integer number (11731479795).

Almost surely, 2^149209548436 is an apocalyptic number.

It is an amenable number.

149209548436 is a deficient number, since it is larger than the sum of its proper divisors (132345966644).

149209548436 is a wasteful number, since it uses less digits than its factorization.

149209548436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3601083 (or 3601081 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 149209548436 in words is "one hundred forty-nine billion, two hundred nine million, five hundred forty-eight thousand, four hundred thirty-six".