155411901 has 12 divisors (see below), whose sum is σ = 225426240. Its totient is φ = 103173000.

The previous prime is 155411843. The next prime is 155411911. The reversal of 155411901 is 109114551.

It is not a de Polignac number, because 155411901 - 2¹¹ = 155409853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155411911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33975 + ... + 38276.

It is an arithmetic number, because the mean of its divisors is an integer number (18785520).

Almost surely, 2^155411901 is an apocalyptic number.

It is an amenable number.

155411901 is a deficient number, since it is larger than the sum of its proper divisors (70014339).

155411901 is a wasteful number, since it uses less digits than its factorization.

155411901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72496 (or 72493 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The square root of 155411901 is about 12466.4309647950. The cubic root of 155411901 is about 537.6439431322.

The spelling of 155411901 in words is "one hundred fifty-five million, four hundred eleven thousand, nine hundred one".