149478022 has 8 divisors (see below), whose sum is σ = 226274400. Its totient is φ = 74053224.

The previous prime is 149478013. The next prime is 149478023. The reversal of 149478022 is 220874941.

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

It is a super-2 number, since 2×149478022² = 44687358122064968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149478023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 342622 + ... + 343057.

It is an arithmetic number, because the mean of its divisors is an integer number (28284300).

Almost surely, 2^149478022 is an apocalyptic number.

149478022 is a deficient number, since it is larger than the sum of its proper divisors (76796378).

149478022 is a wasteful number, since it uses less digits than its factorization.

149478022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685790.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 149478022 is about 12226.1204803486. The cubic root of 149478022 is about 530.7122523156.

The spelling of 149478022 in words is "one hundred forty-nine million, four hundred seventy-eight thousand, twenty-two".