154961653 has 16 divisors (see below), whose sum is σ = 199434240. Its totient is φ = 116852400.

The previous prime is 154961641. The next prime is 154961657. The reversal of 154961653 is 356169451.

It is a happy number.

It is not a de Polignac number, because 154961653 - 2⁹ = 154961141 is a prime.

It is a super-3 number, since 3×154961653³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154961657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30073 + ... + 34846.

It is an arithmetic number, because the mean of its divisors is an integer number (12464640).

Almost surely, 2^154961653 is an apocalyptic number.

It is an amenable number.

154961653 is a deficient number, since it is larger than the sum of its proper divisors (44472587).

154961653 is a wasteful number, since it uses less digits than its factorization.

154961653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64968.

The product of its digits is 97200, while the sum is 40.

The square root of 154961653 is about 12448.3594501444. The cubic root of 154961653 is about 537.1242333423.

The spelling of 154961653 in words is "one hundred fifty-four million, nine hundred sixty-one thousand, six hundred fifty-three".