155097901 has 8 divisors (see below), whose sum is σ = 184961664. Its totient is φ = 127160880.

The previous prime is 155097883. The next prime is 155097911. The reversal of 155097901 is 109790551.

It is a happy number.

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

It is not a de Polignac number, because 155097901 - 2⁵ = 155097869 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 (155097911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481510 + ... + 481831.

It is an arithmetic number, because the mean of its divisors is an integer number (23120208).

Almost surely, 2^155097901 is an apocalyptic number.

It is an amenable number.

155097901 is a deficient number, since it is larger than the sum of its proper divisors (29863763).

155097901 is an equidigital number, since it uses as much as digits as its factorization.

155097901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963371.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 155097901 is about 12453.8307761106. The cubic root of 155097901 is about 537.2816070397.

The spelling of 155097901 in words is "one hundred fifty-five million, ninety-seven thousand, nine hundred one".