155150641 has 4 divisors (see below), whose sum is σ = 155834352. Its totient is φ = 154466932.

The previous prime is 155150591. The next prime is 155150647. The reversal of 155150641 is 146051551.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 146051551 = 1319 ⋅110729.

It is a cyclic number.

It is not a de Polignac number, because 155150641 - 2¹⁵ = 155117873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155150647) 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, 341515 + ... + 341968.

It is an arithmetic number, because the mean of its divisors is an integer number (38958588).

Almost surely, 2^155150641 is an apocalyptic number.

It is an amenable number.

155150641 is a deficient number, since it is larger than the sum of its proper divisors (683711).

155150641 is an equidigital number, since it uses as much as digits as its factorization.

155150641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683710.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 155150641 is about 12455.9480169114. The cubic root of 155150641 is about 537.3424998060.

The spelling of 155150641 in words is "one hundred fifty-five million, one hundred fifty thousand, six hundred forty-one".