155230449 has 16 divisors (see below), whose sum is σ = 227573760. Its totient is φ = 93335760.

The previous prime is 155230447. The next prime is 155230457. The reversal of 155230449 is 944032551.

It is not a de Polignac number, because 155230449 - 2¹ = 155230447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (155230447) 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, 14329 + ... + 22710.

It is an arithmetic number, because the mean of its divisors is an integer number (14223360).

Almost surely, 2^155230449 is an apocalyptic number.

It is an amenable number.

155230449 is a deficient number, since it is larger than the sum of its proper divisors (72343311).

155230449 is a wasteful number, since it uses less digits than its factorization.

155230449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37180.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 155230449 is about 12459.1512150708. The cubic root of 155230449 is about 537.4346186203.

The spelling of 155230449 in words is "one hundred fifty-five million, two hundred thirty thousand, four hundred forty-nine".