155343450 has 48 divisors (see below), whose sum is σ = 407920320. Its totient is φ = 38987520.

The previous prime is 155343443. The next prime is 155343457. The reversal of 155343450 is 54343551.

It is an interprime number because it is at equal distance from previous prime (155343443) and next prime (155343457).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (155343457) 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, 27910 + ... + 33009.

It is an arithmetic number, because the mean of its divisors is an integer number (8498340).

Almost surely, 2^155343450 is an apocalyptic number.

155343450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155343450 is an abundant number, since it is smaller than the sum of its proper divisors (252576870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155343450 is a wasteful number, since it uses less digits than its factorization.

155343450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60951 (or 60946 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 155343450 is about 12463.6852495560. The cubic root of 155343450 is about 537.5649966470.

The spelling of 155343450 in words is "one hundred fifty-five million, three hundred forty-three thousand, four hundred fifty".