155241646 has 16 divisors (see below), whose sum is σ = 268765920. Its totient is φ = 65872800.

The previous prime is 155241643. The next prime is 155241649. The reversal of 155241646 is 646142551.

It is an interprime number because it is at equal distance from previous prime (155241643) and next prime (155241649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155241641) 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, 53481 + ... + 56308.

It is an arithmetic number, because the mean of its divisors is an integer number (16797870).

Almost surely, 2^155241646 is an apocalyptic number.

155241646 is a deficient number, since it is larger than the sum of its proper divisors (113524274).

155241646 is a wasteful number, since it uses less digits than its factorization.

155241646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109899.

The product of its digits is 28800, while the sum is 34.

The square root of 155241646 is about 12459.6005553950. The cubic root of 155241646 is about 537.4475402921.

The spelling of 155241646 in words is "one hundred fifty-five million, two hundred forty-one thousand, six hundred forty-six".