1355450172 has 48 divisors (see below), whose sum is σ = 3194634240. Its totient is φ = 447273792.

The previous prime is 1355450149. The next prime is 1355450183. The reversal of 1355450172 is 2710545531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1095138 + ... + 1096374.

It is an arithmetic number, because the mean of its divisors is an integer number (66554880).

Almost surely, 2^1355450172 is an apocalyptic number.

1355450172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1355450172 is an abundant number, since it is smaller than the sum of its proper divisors (1839184068).

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

1355450172 is a wasteful number, since it uses less digits than its factorization.

1355450172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090 (or 2088 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 1355450172 is about 36816.4388826513. The cubic root of 1355450172 is about 1106.6947566699.

The spelling of 1355450172 in words is "one billion, three hundred fifty-five million, four hundred fifty thousand, one hundred seventy-two".