149474185651 has 8 divisors (see below), whose sum is σ = 178254929664. Its totient is φ = 122550263880.

The previous prime is 149474185633. The next prime is 149474185661. The reversal of 149474185651 is 156581474941.

It is a happy number.

149474185651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 149474185651 - 2¹³ = 149474177459 is a prime.

It is a super-2 number, since 2×149474185651² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149474185592 and 149474185601.

It is not an unprimeable number, because it can be changed into a prime (149474185631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464205385 + ... + 464205706.

It is an arithmetic number, because the mean of its divisors is an integer number (22281866208).

Almost surely, 2^149474185651 is an apocalyptic number.

149474185651 is a deficient number, since it is larger than the sum of its proper divisors (28780744013).

149474185651 is an equidigital number, since it uses as much as digits as its factorization.

149474185651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928411121.

The product of its digits is 4838400, while the sum is 55.

The spelling of 149474185651 in words is "one hundred forty-nine billion, four hundred seventy-four million, one hundred eighty-five thousand, six hundred fifty-one".