145277450 has 12 divisors (see below), whose sum is σ = 270216150. Its totient is φ = 58110960.

The previous prime is 145277441. The next prime is 145277467. The reversal of 145277450 is 54772541.

It can be written as a sum of positive squares in 3 ways, for example, as 120187369 + 25090081 = 10963^2 + 5009^2 .

It is a super-2 number, since 2×145277450² = 42211074957005000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145277450.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1452725 + ... + 1452824.

Almost surely, 2^145277450 is an apocalyptic number.

145277450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145277450 is a deficient number, since it is larger than the sum of its proper divisors (124938700).

145277450 is a wasteful number, since it uses less digits than its factorization.

145277450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905561 (or 2905556 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 145277450 is about 12053.1095572885. The cubic root of 145277450 is about 525.6936560439.

The spelling of 145277450 in words is "one hundred forty-five million, two hundred seventy-seven thousand, four hundred fifty".