155241245 has 8 divisors (see below), whose sum is σ = 186983640. Its totient is φ = 123730240.

The previous prime is 155241239. The next prime is 155241253. The reversal of 155241245 is 542142551.

It can be written as a sum of positive squares in 4 ways, for example, as 139129 + 155102116 = 373^2 + 12454^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-155241245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56366 + ... + 59055.

It is an arithmetic number, because the mean of its divisors is an integer number (23372955).

Almost surely, 2^155241245 is an apocalyptic number.

It is an amenable number.

155241245 is a deficient number, since it is larger than the sum of its proper divisors (31742395).

155241245 is a wasteful number, since it uses less digits than its factorization.

155241245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115695.

The product of its digits is 8000, while the sum is 29.

The square root of 155241245 is about 12459.5844633760. The cubic root of 155241245 is about 537.4470775368.

Adding to 155241245 its reverse (542142551), we get a palindrome (697383796).

The spelling of 155241245 in words is "one hundred fifty-five million, two hundred forty-one thousand, two hundred forty-five".