155406653 has 8 divisors (see below), whose sum is σ = 165224448. Its totient is φ = 145843984.

The previous prime is 155406637. The next prime is 155406661. The reversal of 155406653 is 356604551.

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 155406653 - 2⁴ = 155406637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155406613) 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 7 ways as a sum of consecutive naturals, for example, 62525 + ... + 64962.

It is an arithmetic number, because the mean of its divisors is an integer number (20653056).

Almost surely, 2^155406653 is an apocalyptic number.

It is an amenable number.

155406653 is a deficient number, since it is larger than the sum of its proper divisors (9817795).

155406653 is a wasteful number, since it uses less digits than its factorization.

155406653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127563.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 155406653 is about 12466.2204777551. The cubic root of 155406653 is about 537.6378912851.

The spelling of 155406653 in words is "one hundred fifty-five million, four hundred six thousand, six hundred fifty-three".