145370452 has 6 divisors (see below), whose sum is σ = 254398298. Its totient is φ = 72685224.

The previous prime is 145370429. The next prime is 145370479. The reversal of 145370452 is 254073541.

It can be written as a sum of positive squares in only one way, i.e., 111218116 + 34152336 = 10546^2 + 5844^2 .

It is a super-2 number, since 2×145370452² = 42265136629368608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18171303 + ... + 18171310.

Almost surely, 2^145370452 is an apocalyptic number.

It is an amenable number.

145370452 is a deficient number, since it is larger than the sum of its proper divisors (109027846).

145370452 is a wasteful number, since it uses less digits than its factorization.

145370452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36342617 (or 36342615 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 145370452 is about 12056.9669486152. The cubic root of 145370452 is about 525.8058095643.

The spelling of 145370452 in words is "one hundred forty-five million, three hundred seventy thousand, four hundred fifty-two".