145540354 has 4 divisors (see below), whose sum is σ = 218310534. Its totient is φ = 72770176.

The previous prime is 145540331. The next prime is 145540379. The reversal of 145540354 is 453045541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453045541 = 13 ⋅34849657.

It can be written as a sum of positive squares in only one way, i.e., 145082025 + 458329 = 12045^2 + 677^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36385087 + ... + 36385090.

Almost surely, 2^145540354 is an apocalyptic number.

145540354 is a deficient number, since it is larger than the sum of its proper divisors (72770180).

145540354 is an equidigital number, since it uses as much as digits as its factorization.

145540354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72770179.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 145540354 is about 12064.0106929661. The cubic root of 145540354 is about 526.0105753342.

Adding to 145540354 its reverse (453045541), we get a palindrome (598585895).

The spelling of 145540354 in words is "one hundred forty-five million, five hundred forty thousand, three hundred fifty-four".