155450446 has 4 divisors (see below), whose sum is σ = 233175672. Its totient is φ = 77725222.

The previous prime is 155450443. The next prime is 155450483. The reversal of 155450446 is 644054551.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155450441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38862610 + ... + 38862613.

It is an arithmetic number, because the mean of its divisors is an integer number (58293918).

Almost surely, 2^155450446 is an apocalyptic number.

155450446 is a deficient number, since it is larger than the sum of its proper divisors (77725226).

155450446 is an equidigital number, since it uses as much as digits as its factorization.

155450446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77725225.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 155450446 is about 12467.9768206393. The cubic root of 155450446 is about 537.6883879755.

The spelling of 155450446 in words is "one hundred fifty-five million, four hundred fifty thousand, four hundred forty-six".