145214532 has 30 divisors (see below), whose sum is σ = 379620318. Its totient is φ = 48404736.

The previous prime is 145214521. The next prime is 145214533. The reversal of 145214532 is 235412541.

It can be written as a sum of positive squares in only one way, i.e., 135629316 + 9585216 = 11646^2 + 3096^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 145214496 and 145214505.

It is not an unprimeable number, because it can be changed into a prime (145214533) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 223773 + ... + 224420.

Almost surely, 2^145214532 is an apocalyptic number.

145214532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145214532 is an abundant number, since it is smaller than the sum of its proper divisors (234405786).

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

145214532 is a wasteful number, since it uses less digits than its factorization.

145214532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448209 (or 448198 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 145214532 is about 12050.4992427700. The cubic root of 145214532 is about 525.6177544512.

The spelling of 145214532 in words is "one hundred forty-five million, two hundred fourteen thousand, five hundred thirty-two".