145451514 has 64 divisors (see below), whose sum is σ = 325584000. Its totient is φ = 43027200.

The previous prime is 145451513. The next prime is 145451521. The reversal of 145451514 is 415154541.

It is a super-2 number, since 2×145451514² = 42312285849784392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145451513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291237 + ... + 291735.

It is an arithmetic number, because the mean of its divisors is an integer number (5087250).

Almost surely, 2^145451514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145451514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162792000).

145451514 is an abundant number, since it is smaller than the sum of its proper divisors (180132486).

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

145451514 is a wasteful number, since it uses less digits than its factorization.

145451514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655.

The product of its digits is 8000, while the sum is 30.

The square root of 145451514 is about 12060.3281049895. The cubic root of 145451514 is about 525.9035253195.

The spelling of 145451514 in words is "one hundred forty-five million, four hundred fifty-one thousand, five hundred fourteen".