145342402 has 8 divisors (see below), whose sum is σ = 218094012. Its totient is φ = 72644400.

The previous prime is 145342399. The next prime is 145342409. The reversal of 145342402 is 204243541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 92910321 + 52432081 = 9639^2 + 7241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145342402² = 42248827638259208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145342409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5749 + ... + 17992.

Almost surely, 2^145342402 is an apocalyptic number.

145342402 is a deficient number, since it is larger than the sum of its proper divisors (72751610).

145342402 is a wasteful number, since it uses less digits than its factorization.

145342402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26804.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 145342402 is about 12055.8036646256. The cubic root of 145342402 is about 525.7719883820.

Adding to 145342402 its reverse (204243541), we get a palindrome (349585943).

The spelling of 145342402 in words is "one hundred forty-five million, three hundred forty-two thousand, four hundred two".