154152649 has 4 divisors (see below), whose sum is σ = 176174464. Its totient is φ = 132130836.

The previous prime is 154152637. The next prime is 154152671. The reversal of 154152649 is 946251451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154152649 - 2¹⁵ = 154119881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154152689) 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, 11010897 + ... + 11010910.

It is an arithmetic number, because the mean of its divisors is an integer number (44043616).

Almost surely, 2^154152649 is an apocalyptic number.

It is an amenable number.

154152649 is a deficient number, since it is larger than the sum of its proper divisors (22021815).

154152649 is an equidigital number, since it uses as much as digits as its factorization.

154152649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22021814.

The product of its digits is 43200, while the sum is 37.

The square root of 154152649 is about 12415.8225261156. The cubic root of 154152649 is about 536.1878854671.

The spelling of 154152649 in words is "one hundred fifty-four million, one hundred fifty-two thousand, six hundred forty-nine".