155230450 has 48 divisors (see below), whose sum is σ = 302927040. Its totient is φ = 59069120.

The previous prime is 155230447. The next prime is 155230457. The reversal of 155230450 is 54032551.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (155230457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398856 + ... + 399244.

It is an arithmetic number, because the mean of its divisors is an integer number (6310980).

Almost surely, 2^155230450 is an apocalyptic number.

155230450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155230450 is a deficient number, since it is larger than the sum of its proper divisors (147696590).

155230450 is a wasteful number, since it uses less digits than its factorization.

155230450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 155230450 is about 12459.1512552019. The cubic root of 155230450 is about 537.4346197743.

The spelling of 155230450 in words is "one hundred fifty-five million, two hundred thirty thousand, four hundred fifty".